A cobpobatiojs



c. B. THOMPSON. BOILER.

PPLICATION FILED DEC- II. i916.

Patented Deo. 30,1919.

2 SHEETS-SHEET 2.

I I g man Referring' now to the drawings and more particularly to 1 to 3 inclusive, 10 represents the boiler part of my device and 11 the furnace part thereof. These parts of my device are separate from each other and are fastened together by any suitable means. This arrangement provides a boiler.

which may have the size of its coal Vmagazine easily changed. The boiler part of my device comprises a plurality of boiler sections 12. Each of these sections, except the end ones, is symmetrical in form. Eachsection is bounded by a rib 13 which extends entirely around the section, except where openings are provided, and thus forms the usual lues for the gases between adjacent sections. In the front at the lower side portion of each of the boiler sections is pro-` vided a plurality of louvers 14, which provide spaces, opening into the furnace part of my boiler. VThese louvers are arranged opposite the fire in the furnace part of my boiler and are inclined downwardly and outwardly, so that the heated gases may have fre-e access to the iues ot the boiler, and at the same time prevent the coal in the furnace from dropping into the boiler sections.

Immediately above the louvers 14 of the boiler sections provided a rearwardly and downwardly extending lower flue rib l5, which has its upper end integral with the outer rib 13 at the front of the section and its lower end curved downwardly and forwardly, so that a whirlpool action" ot the gases will be caused as they come from theA fire. Some distance above the lower iiue rib :15. lis arranged an upper 'Hue rib 16. This rib is inclined upwardly from the rear of the section and has its rear end integral with the rib 13 at the rear of each section and its upwardly inclined trout end eXteuding to a point near the front rib 13 of the section. Arranged immediately above the inner end of the iiue rib 1G is a flue outlet 17. This outlet is formed in a number ot boiler sections 1Q, and extending` across the. outlets is a fineI outlet collar 18. to which is secured the chimney iue 19. 2O is a damper arranged in the llue outlet collar 18. It will thus be seen that a serpentine channel or flue is provided through the boiler sections for the gases. An opening' Q1 is provided in each of the sections, immediately above the flue rib 16 and these openings form a means or' counnunication between the sections, whereby the burned gases may reach the i weasel draft opening. An opening; 22 is also provided in each of the sections, which communicate with suitable openings in the end sections (not shown), whereby the boiler iiues may be easily cleaned. An openingv is also provided inthe lower rear part of each of the sections and is closed'byfmeans of a collar 24C and a door 25. These openings provide additional means oiaccess' to the flues of the sections for cleaning purposes, and also yprovide means ot access to the fiues for the convenient installation ot' gas burners. A

The water lspaces in adjacent boiler sections are connected together; by means ot the usual tapered nipples (not shown),.hubs 26 and 27 being provided at the upper and lower parts ot each section, respectively, for this purpose, and also for inlet and outlet pipes (not shown) to and from the boiler. The boiler sections of my device may be secured together by any wel lJ known means, but in my preferred way, I provide' a central, outwardly-extending flange 28 at eac-h corner of each section. Each of these iianges is provided with two apertures and when assembled a bolt 29 is passed through the upper holes of the flanges of the iirst and second sections and then another bolt is passed through thelower holes of the flanges 0f the second and third sections, and so on throughout the remaining sections, so that the bolts 29 are arranged in staggered re .lation across the boiler part of the device.

A stop lug 30 is provided on each side ot each of the flanges Q8 and extends upwardly to a point slightly above the general finished surface or' the boiler section. The distance between the finished face ot the section and,

the upper iace of this stop lug is just enough to allow for the usual packing, which is placed between the boiler sections.

An end boiler` section 3Q. is secured at one. end of the boiler part of my device and an end boiler section is secured t0 the other end thereof. Each ot these sections is pro` vided on its inner surface with ribs and louvers in the same way as each of the regular boiler sections. but the outer wall thereof is plain. In the front face ot each of these end boiler sections is provided an upper boss 34 (shown in dotted lil es in Fig. 1) and a lower boss 35. respectively. cach of which is provided with an interiorly screwthreaded aperture, which is in conununication with the water space of the boiler section, to 'bef hereinafter referred to.

The furnace part 411`\of my boiler comprises a front wall 36, in which is provided the usual fire door 37 and the ash pit door End walls 39 and 40 are provided ai each end of the furnace part and a. top 11, havimg` a magazine charge door l2 in its face, covers the furnace part.

Each of the furnace ends 39 and 40 is masser provided with an inner Wall fifi and an outer Wall 44, thus forming in each a Water space 45. in'upper wall i6 closes the Water front the top and a lower Wall i? closes the saine at the bottoni. An end Wall e8 is pro vided at the iront ci the Water space. .A n end Wall lill is also provided at the rear et the water space and arranged adjacent to the front or' the enel boiler sections and Each oit' the furnace ends extend preferably only to 'the ,gi-ailes of the furnace and an ash pit plate 50 is arranged beneath each of the furnace ends extending,` therefrom to the floor line ci the boiler. ln each of these plates is arranged an air opening 51. for the furnace, a damper 52 being provided in eachl opening. p

Arranged near the :iront oi the furnace part of my boiler is a Water front llhis Water front is provided at each side of its upper end with a Water outlet pipe 5s. 'These outlet pipes are arranged to pass through suitable apertures in the inner 'Wall 4&3 of each of the furnace end Walls 39 and 40, whereby a pivotal support for the Water front is provided. Connecting each oi the outlet pipes 54e with the threaded aperture in the boss ci" the end boiler section, is a pipe 55 (shown in dotted lines ci l). Each of these pipes 55 is arranged across the top of the Water space #l5 inthe furnace end walls 39 and 40 and a. branch pipe 5G connects this 'water space with each of these pipes. so that not only the Water from the Water front 53 but also the water 'from the Water spaces of the furnace end Walls 39 and 40 will be connected with the Water space oi the boiler part. The lower coi ner of the Wa er iront is cut away at each side thereof, thus forming recesses 57. The Water inlet pipe 58 for the Water front is secured into the vertical face oi each of these recesses. 59 are the supply pipes, each oi' which has one end connected with the screwthreadcd aperture in the boss 35 of each 'of the end boiler sections and the other end of each is connected, by ineens of the oblique pipe 60 and the horizontal pipe Gl, to the inlet Waterpipc 5S.

By this arrangement it is possible, byincreasing` or decreasing the length of the pipes 60 and 61, to alter the position of the Water front 58, so that either coarse or fine coal can he burned in the furnace. The pipes 59 lie directly beneath the lower walls 4?' of the vater spaces oi" zhe furnace end walls and a branch pipe 62 connects each of these pipes with J(the Water space or" sach end Wall. 'it will be seen that the Water Corning iroin the end boiler sections 3,21 and 33 will pass through` the pii'ies 59 and supply the end furnace Walls through the branch 'nies G2 and the Water ifi-ont throiwh the l i v 23 pipes 60, Gl and 58. The Water from the water front and also that from each :tur-

- Each oit' these grate oil the lire.

nace end wall will be conducted through the l, pipes 55 back to the end boiler sections.

Referring new particularly to Figs. l to 9, where i show the grate members oic my boiler, it will he seen that a plurality oi .separate grain members 63 are provided.' i members is substfnitially lil-shaped in cross seetimA throughout thev greater part oi" length and is provided with outwardly ez-,ten'ding lingers 64 at each side thereof 'i' and At the inner end oi' each' grate member is provided an am nular projection G5 which is supported within an annular recess 6G, formed by the .hangs 72 provided cnthe face oi each of the boiler sections l2. rlhe outer end of each of the grate ineinbers is provided with an annular head 67, having its axis coincident With the annular projection G5. This head is supported by a seinicircular flange 68, ior'med integral with the furnace iront 36. The head of each grate member is provided with a squaresshaped aperture 69 (Fig. 9), which is in line with a circularly shaped aperture TO formed through the face oi" the furnace front whereby a shaker handle, shown in. dotted lines in Fig. G, may be passed through the aperture 70 and engaged with the aperture 68 for separatelj;7 rocking;` each grate. A water-pipe 71 is screvthreaded into the front of each of the water sec tions and is arranged concentric Ywith the annular recess o6. @ne or these pipes is provided for each grate nielnber and is arranged to be encircled thereby, as clearly shown in Figs. 6 and 7. Each of the pipes 7l is in communication with ,the Water space of the boiler section to which it is attached and is closed at its outer end, so that the grate nieinbersare kept cool and at the saine tinie the heat therefrom is utilized b v being taken up by the Water from the boiler sec tion.

Freni the drawings, and more particularly :from Fig. i, it will he seen by the arrows that air is taken into the furnace `through the air opening 5l provided at each side thereof. This air will not .only pass up between the, iingers of the grate inem* bers, which are directly beneath the hre, but also between those which are in iront Thus, the lire will receive air from the front and'roni beneath. By this provision, ifi the grates should be clogged with ashes, the lire would not be impaired but kwould receive its proper Aamount of draft. llui-therinore, it will be seen from Fig'. l, that the lire bed is very thin at the extreme inner ends oi? the grate members, whereby the kindling of a iire in the furnace greatly facilitated. The coming .troni the furnace will pass into the dues of the boiler sections between the louvers is.

Just as soon as the rases enter 'the fines of the boiler sections they' will oreja-.fr

against the lower' iue ribs l5 and deiiected downwardly so that they will strike the curved end of these ribs and be projected inwardly in a circular direction and at a point just opposite the hottest part of the fire and where the gases coming therefrom are the highest 1n temperature. The wliirl- VVing action thus produced will thoroughly and effectively break up all strata of the burned gases and thus thoroughly commingle them with the incoming oxygen, thereby my invention or the scope of the appended claims, and I do not, therefore, wish to be limited to the exact embodiment herein shown and described.

Having thus described my invention, what I claim is j l. A boiler comprising a boiler part and a furnace part, means for separably uniting the parts, the furnace part comprising a grate and a fuel magazine, the boiler part being provided in its lower portion with flue openings leading into the combustion zone of the furnace part, and comprising flues and a plurality of louvers arrangedlin the openings between the said parts.

2. A boiler comprising a boiler part and a furnace part, means for separably uniting the parts, the furnace part comprising a grate and a fuel magazine, the boiler part being provided in its lower portion with iiue openings leading into the combustion zone ofv the furnace part, and comprising lues and means, located in the openings between the said parts, for preventing the fuel from passing from the furnace part to the boiler part.

3. A boiler comprising a boiler part andv a furnace part, means for separably uniting the parts, the furnace part comprising a grate and a fuel magazine, the boiler part being provided in its lower portion with flue openings leading' into the combustion zone of the furnace part, and comprising iiues and a plurality of louvers arranged in the openings between' said parts and inclined upwardly and inwardly toward the boiler part.

1l. A boiler comprising a boiler part and a furnace part, means for separably uniting the parts, the furnace part comprising a plurality of individually movable grate members and a fuel magazine, the boiler furnace ends, the boiler part being part Vbeing' provided in its lower portion with iiue openings leading into the combustion zone of the furnace part, and compris# ing iiues and a plurality of louvers arranged in the openings between the said parts.

5. A boiler comprising a boiler part and a furnace part, means for separably uniting the parts, the furnace part comprising a plurality of water cooled`| movable grate members and a fuel magazine, the boiler part being provided in its lower portion with flue openings leading into the combustion zone of the furnace part, and comprising iiues and a plurality of louvers arranged in the openings between the said parts.

6. A boiler comprising a boiler part and a furnace part, means for separably uniting the parts, the furnace part comprising a casing, a grate member, a fuel magazine `comprising an adjustably mounted water jacketed front, and means for supplying water from the boiler. part to the water jacketed front, the boiler part being provided in its lower portion with iiue openings leading into the combustion zone of the furnace part, land comprising iues and a plurality y of louvers arranged in the openings between the said parts.

7. A boiler comprising a 4boiler part and a furnace part, means for separably uniting the parts, the furnace art comprising a casing, having water jac eted ends, a grate member, a fuel magazine, and means for supplying water from the boiler part to the rovided in its lower portion with Hue opemngs leading into the combustion zone of the furnace part, and comprising iues and a plurality of louvers arranged in the openings between the saidparts.

8. A boiler comprising a boiler part and a furnace part, means for separably uniting the parts, the furnace part comprising a casing, a grate member, the casing being provided with end walls, Veach having an adj ustable opening therein, disposedbelow the grate member, a fuel magazine, the boiler part being provided in its 'lower portion with flue openings leading into the combustion zone of the furnace part, and comprising fiues and a plurality of louvers arranged in the openings between the said parts.

9. A boiler comprising a boiler part and a furnace part, means for separably uniting the parte', the furnace part comprising a casing, having-water jacketed ends, a grate member, the casing being provided with end walls, each having an adjustable opening therein, disposed below the grate member, a fuel magazine, the boiler part being provided in its lower portion with iiue openings leading into the combustion zone of the furnace part, and comprising iiues and a plurality of louvers arranged in the openings between the said parts.

10. A boiler comprising a boiler part and y a furnace part, means for separately uniting the parts, the furnace part comprising a grate and a fuel magazine, the boiler part, being provided in its lower portion with Hue openings leading .into the combustion zone of-the furnace part, and comprising lues, a plurality of louvers arranged in the openings between the said parts, and downwardly, inwardly and forwardly extending lower ribs integral with theboiler part and connected to the front wall thereof, arranged iopposite the louvers and having their upper ends extending above the louvers and their lower ends extending downwardly beyond them.

1l. A boiler comprising ,a boiler part and a furnacepart, means for separably uniting a furnace part, means for separably uniting the parts, the furnace part comprising a grate and a fuel magazine, the boiler part, being provided in its lower portion with i'iue openings leading into the combustion zone of the furnace part, and comprisingnues, a plurality of louvers arranged in the openings between the said parts, downwardly, inwardly and forwardly extendinglower ribs integral with the boiler part and connected to the front wall thereof, .arranged opposite the louvers and 'having their upper ends extending above thelouvers and their lower ends extending downwardly beyond them, a ue outlet, and upper flue ribs integral with the' boiler part having their rear ends connected to the rear of thev boiler, the upper flue ribs being upwardly and forwardly inclined and positioned below the flue outlet. i p

13. A boiler comprising a boiler part and a furnace part, means for Aseparalbly uniting the parts, the furnace part comprising a grate and a fuel magazine, the boiler part comprising boiler sections, lues formed in the boiler sections, the boiler sections being each provided with flanges, -each formed with two apertures, and fastening means passing through thelapertures of ad3acent boiler sections and arranged in staggered relation.

14. A boiler comprising a boiler part and a furnace part, means for separably unitingthe parts, the boiler partcomprising boiler sections, each of the sections being provided with liues and with flue openings in its lowerv portion leading into the combustion zone of Y the furnace part, and louvers arranged in.

the openings, the furnace part comprising a plurality of movable giate members, each,

member comprising a `ll-shaped rocking grate bar provided with fingers, and an out wardlyextending water pipe connected with each of the boiler sections, one of the,

grate bars being disposed over each of the pipes and rotatably supported by the boiler part and the furnace part. i

. 15.- A boiler comprising a boiler part -aiid a furnace part, means for separably uniting 'the parts, the boiler part comprising boiler sections, each of the sections being provided Y with iue's and with flue openings in its lower portion leading into the combustion zone of the furnace part,y and louvers 'arranged in the openings, the furnace' part comprising a plurality of movable grate members, each member comprising a U- shaped rocking grate'bar provided with fingers, an `outwardly extending water pipe connected with each of the -boiler sections, one' of the grate bars being disposed over each of the pipes and rotatably supported by the boiler part and the furnace part, and means for individually rocking the grate members.

16. A boiler having a furnacepart com- 'prising a casing, anadjustable 'waterfrontmovably mounted within thecasing, ,a fuelmagazine bounded on one side by they water front, a grate member, and adjustable means.

connectin the water front'with the Water space of t e boiler.

a furnace part, means for separably uniting the parts, an adjustable water front mov 17. A boiler comprising a boiler part and ros ably mounted within the casing, a fuel inag- ,i

azine bounded on one side by the Water front, a grate member, and adj'istabley means connectin the water front wi h the water space of t e boiler. f 18. A boiler comprising a boiler parir a furnace part, `the furnace part com-rising a' casing having water jacketed en s, a grate member, an adjustable water front movably mounted within the Casin a fuel magazine bounded on one side by te Water.

front, and means for supplying water from the boiler part to the furnace ends and the water front.

In' testimony whereof l have hereunto signed my naine.

CHARLES B. THOMPSN. 

